Pet door corridor



FIG. 1 is a perspective view of a pet door corridor.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left view thereof.

FIG. 5 is a right view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines illustrate portions of the pet door corridor that form no part of the claimed design. 

CLAIM The ornamental design for a pet door corridor, as shown and described. 